plymouth-populate-initrd: Fix usage message

It currently says the scripts name is `plymouth` not
`plymouth-populate-initrd`.

This commit changes it to use $0

diff --git a/scripts/plymouth-populate-initrd.in b/scripts/plymouth-populate-initrd.in
index 1c29e4c764551279cee8ad7eedb25cb3c002f2a4..8ccac22c637dd4f4228e24e798b537323587ee72 100755 (executable)
--- a/scripts/plymouth-populate-initrd.in
+++ b/scripts/plymouth-populate-initrd.in
@@ -424,7 +424,7 @@ function usage() {
         rc=1
     fi
 
-    echo "usage: plymouth [ --verbose | -v ] { --targetdir | -t } <initrd_directory> { --x11-directory | -x } <x11_directory>" > $output
+    echo "usage: $0 [ --verbose | -v ] { --targetdir | -t } <initrd_directory> { --x11-directory | -x } <x11_directory>" > $output
     exit $rc
 }